Effects of substitution on low-temperature physical properties of LuFe2Ge2

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2011-12-01
Authors
Ran, Sheng
Bud’ko, Sergey
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Abstract

The low-temperature magnetic phase transition in LuFe2Ge2 is thought to be associated with itinerant magnetism. The effects of Y and Sc substitutions on the Lu site, as well as Ru and Co substitutions on the Fe site, on the low-temperature magnetic phase transition of the LuFe2Ge2 compound have been studied in single crystals via microscopic, thermodynamic and transport measurements. On one hand, Co substitution suppresses the transition below our base temperature of 2 K even at our lowest substitution level. On the other hand, Sc substitution enhances the transition temperature, and Y or Ru substitution suppresses the transition to lower temperature. Phase diagrams for Y, Sc and Ru substitutions have been constructed and the possibility of a unifying, composite diagram is discussed.

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This article is published by Taylor & Francis as Ran, Sheng, Sergey L. Bud'ko, and Paul C. Canfield. "Effects of substitution on low-temperature physical properties of LuFe2Ge2." Philosophical Magazine 91, no. 34 (2011): 4388-4400. DOI: 10.1080/14786435.2011.621903.

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